What's a good source for obtaining 703 in the States? I checked with Home
Depot but it appears it would be a 6-8 week order and they are not even
certain they can get it at this point. What is the cost of this product?
I'm looking for the 4 inch width.

> What's a good source for obtaining 703 in the States? I checked with Home
> Depot but it appears it would be a 6-8 week order and they are not even
> certain they can get it at this point. What is the cost of this product?
> I'm looking for the 4 inch width.

Commercial contractor supply houses will carry a line of fiberglass board
insulation. It is a common construction material. 703 is the Corning
product most often referred to in acoustics, but others manufacture similar
products ....

Products with similar densities and interstices (the size and distribution of
voids) are virtually identical acoustically, so shop for cost if you can
identify multiple convenient locally available products in this class. If
AF530 is 20% cheaper than either Corning 703 or Manville Spinglas CB300 in
your hometown, buy CertainTeed's AF530 cause for your purposes there is no
difference.